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Analyze Customer Trends Over Time

MediumMetrics00:00
Equifax
Your interviewer · Data Analyst
In session
Interviewer

Welcome to your interview for the Data Analyst role at Equifax.

The question is on your right: Analyze Customer Trends Over Time. Take a moment with it first.

Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen. You have three graded attempts to score 7/10 or better.

Only Submit answer is graded - discussion is free practice.

Problem

Scenario

You're looking at customer behavior after a series of product and marketing changes. The team wants to understand how behavior is evolving over time, not just whether a single metric moved in one period.

Question

How would you analyze customer behavior trends over time?

What this tests

  • Choosing the right trend metrics instead of relying on one headline KPI
  • Using time series views to separate seasonality, noise, and structural change
  • Connecting engagement patterns to retention outcomes
  • Diagnosing trend changes through segment and cohort decomposition